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phy-sun4i-usb: Warn when external vbus is detected

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Warn when external vbus is detected when we're trying to enable our
own vbus.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
This commit is contained in:
Hans de Goede 2016-09-07 22:20:41 +02:00 committed by Kishon Vijay Abraham I
parent 6ba43c2919
commit 91d6e3b6bc
1 changed files with 3 additions and 1 deletions
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4
drivers/phy/phy-sun4i-usb.c
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@ -390,8 +390,10 @@ static int sun4i_usb_phy_power_on(struct phy *_phy)
/* For phy0 only turn on Vbus if we don't have an ext. Vbus */
if (phy->index == 0 && sun4i_usb_phy0_have_vbus_det(data) &&
data->vbus_det)
data->vbus_det) {
dev_warn(&_phy->dev, "External vbus detected, not enabling our own vbus\n");
return 0;
}
ret = regulator_enable(phy->vbus);
if (ret)